Ethorop is one of a family of organophosphorus pesticides. It is combustible though it may require some effort to ignite. It is very toxic by skin absorption and inhalation. It may or may not be water soluble.
颜色/状态:
Pale yellow liquid
蒸汽密度:
Relative vapor density (air = 1): 8.4
蒸汽压力:
3.8X10-4 mm Hg @ 20-25 °C
稳定性/保质期:
纯品是一种淡黄色的透明液体,略微带有硫醇的气味。
分解:
When heated to decomposition it emits very toxic fumes of /phosphorus oxides and sulfur oxides/.
After admin of labeled Mocap by stomach tube to rats, urine contained traces of methyl propyl sulfide, methyl propyl sulfoxide and methyl propyl sulfone... Major water-sol metabolite was o-ethyl-s-propyl phosphorothioic acid. This was also obtained with liver microsomes and supernatant. Rat urine also contained o-ethyl phosphoric acid, s-propyl phosphorothiolic acid and s,s-dipropyl phosphorodithioic acid. Rat and rabbit liver supernatant enzymes de-ethylated Mocap in the presence of glutathione and formed s-ethylglutathione.
In a metabolism study, ethoprop was administered to Crl:CD(SD)BR rats as a single IV bolus (males and females); single oral bolus (females, metabolism and pharmacokinetic studies; males, metabolism only); or by multiple oral doses. Following oral administration, ethoprop was completely absorbed and completely metabolized. ...Metabolism was by dealkylation of one or both S-propyl groups, followed by hydroxylation and probably conjugation. Two urinary metabolites were identified by HPLC while 3 others were believed to be possible conjugates of those metabolites. The TLC profiles of fecal metabolites were similar to the profiles for urinary metabolites.
Metabolism of organophosphates occurs principally by oxidation, by hydrolysis via esterases and by reaction with glutathione. Demethylation and glucuronidation may also occur. Oxidation of organophosphorus pesticides may result in moderately toxic products. In general, phosphorothioates are not directly toxic but require oxidative metabolism to the proximal toxin. The glutathione transferase reactions produce products that are, in most cases, of low toxicity. Paraoxonase (PON1) is a key enzyme in the metabolism of organophosphates. PON1 can inactivate some organophosphates through hydrolysis. PON1 hydrolyzes the active metabolites in several organophosphates insecticides as well as, nerve agents such as soman, sarin, and VX. The presence of PON1 polymorphisms causes there to be different enzyme levels and catalytic efficiency of this esterase, which in turn suggests that different individuals may be more susceptible to the toxic effect of organophosphate exposure.
Ethoprop is a cholinesterase or acetylcholinesterase (AChE) inhibitor. A cholinesterase inhibitor (or 'anticholinesterase') suppresses the action of acetylcholinesterase. Because of its essential function, chemicals that interfere with the action of acetylcholinesterase are potent neurotoxins, causing excessive salivation and eye-watering in low doses, followed by muscle spasms and ultimately death. Nerve gases and many substances used in insecticides have been shown to act by binding a serine in the active site of acetylcholine esterase, inhibiting the enzyme completely. Acetylcholine esterase breaks down the neurotransmitter acetylcholine, which is released at nerve and muscle junctions, in order to allow the muscle or organ to relax. The result of acetylcholine esterase inhibition is that acetylcholine builds up and continues to act so that any nerve impulses are continually transmitted and muscle contractions do not stop. Among the most common acetylcholinesterase inhibitors are phosphorus-based compounds, which are designed to bind to the active site of the enzyme. The structural requirements are a phosphorus atom bearing two lipophilic groups, a leaving group (such as a halide or thiocyanate), and a terminal oxygen.
来源:Toxin and Toxin Target Database (T3DB)
毒理性
致癌性证据
癌症分类:可能对人类致癌
Cancer Classification: Likely to be Carcinogenic to Humans
来源:Hazardous Substances Data Bank (HSDB)
毒理性
致癌物分类
对人类不具有致癌性(未被国际癌症研究机构IARC列名)。
No indication of carcinogenicity to humans (not listed by IARC).
来源:Toxin and Toxin Target Database (T3DB)
毒理性
健康影响
急性接触胆碱酯酶抑制剂可能会导致胆碱能危象,表现为严重的恶心/呕吐、流涎、出汗、心动过缓、低血压、崩溃和抽搐。肌肉无力可能性增加,如果呼吸肌受到影响,可能会导致死亡。在运动神经积累的乙酰胆碱会导致神经肌肉接头处尼古丁受体的过度刺激。当这种情况发生时,可以看到肌肉无力、疲劳、肌肉痉挛、肌束震颤和麻痹的症状。当自主神经节积累乙酰胆碱时,这会导致交感系统中尼古丁受体的过度刺激。与此相关的症状包括高血压和低血糖。由于乙酰胆碱积累,中枢神经系统中尼古丁乙酰胆碱受体的过度刺激会导致焦虑、头痛、抽搐、共济失调、呼吸和循环抑制、震颤、全身无力,甚至可能昏迷。当由于副交感神经节积累乙酰胆碱导致毒蕈碱受体过度刺激时,可能会出现视力障碍、胸部紧绷、由于支气管收缩引起的喘息、支气管分泌物增加、唾液分泌增加、流泪、出汗、肠蠕动和排尿的症状。生育、生长和发育方面的某些生殖效应已特定与有机磷农药暴露有关。关于生殖效应的大多数研究都是在农村地区使用农药和杀虫剂的农民中进行的。在女性中,月经周期紊乱、怀孕时间延长、自然流产、死产以及后代的一些发育效应已与有机磷农药暴露有关。产前暴露与胎儿生长和发育受损有关。神经毒性效应也与有机磷农药中毒有关,导致人类出现四种神经毒性效应:胆碱能综合征、中间综合征、有机磷诱导的迟发性多发性神经病(OPIDP)和慢性有机磷诱导的神经精神障碍(COPIND)。这些综合征在急性 and 慢性暴露于有机磷农药后出现。
Acute exposure to cholinesterase inhibitors can cause a cholinergic crisis characterized by severe nausea/vomiting, salivation, sweating, bradycardia, hypotension, collapse, and convulsions. Increasing muscle weakness is a possibility and may result in death if respiratory muscles are involved. Accumulation of ACh at motor nerves causes overstimulation of nicotinic expression at the neuromuscular junction. When this occurs symptoms such as muscle weakness, fatigue, muscle cramps, fasciculation, and paralysis can be seen. When there is an accumulation of ACh at autonomic ganglia this causes overstimulation of nicotinic expression in the sympathetic system. Symptoms associated with this are hypertension, and hypoglycemia. Overstimulation of nicotinic acetylcholine receptors in the central nervous system, due to accumulation of ACh, results in anxiety, headache, convulsions, ataxia, depression of respiration and circulation, tremor, general weakness, and potentially coma. When there is expression of muscarinic overstimulation due to excess acetylcholine at muscarinic acetylcholine receptors symptoms of visual disturbances, tightness in chest, wheezing due to bronchoconstriction, increased bronchial secretions, increased salivation, lacrimation, sweating, peristalsis, and urination can occur. Certain reproductive effects in fertility, growth, and development for males and females have been linked specifically to organophosphate pesticide exposure. Most of the research on reproductive effects has been conducted on farmers working with pesticides and insecticdes in rural areas. In females menstrual cycle disturbances, longer pregnancies, spontaneous abortions, stillbirths, and some developmental effects in offspring have been linked to organophosphate pesticide exposure. Prenatal exposure has been linked to impaired fetal growth and development. Neurotoxic effects have also been linked to poisoning with OP pesticides causing four neurotoxic effects in humans: cholinergic syndrome, intermediate syndrome, organophosphate-induced delayed polyneuropathy (OPIDP), and chronic organophosphate-induced neuropsychiatric disorder (COPIND). These syndromes result after acute and chronic exposure to OP pesticides.
来源:Toxin and Toxin Target Database (T3DB)
毒理性
暴露途径
该物质可以通过吸入、皮肤接触、眼睛接触和摄入而被人体吸入危险量的有害物质。
The substance can be absorbed into the body in hazardous amounts by inhalation, through the skin, through the eyes and by ingestion.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
In a metabolism study, ethoprop was administered to Crl:CD(SD)BR rats as a single IV bolus (males and females); single oral bolus (females, metabolism and pharmacokinetic studies; males, metabolism only); or by multiple oral doses. Following oral administration, ethoprop was completely absorbed and completely metabolized. Excretion was by urinary (>50% administered dose), fecal (7-16%), and respiratory (11-19%) routes and was essentially complete by 48 hours.
Interrogation of the Substrate Profile and Catalytic Properties of the Phosphotriesterase from Sphingobium sp. Strain TCM1: An Enzyme Capable of Hydrolyzing Organophosphate Flame Retardants and Plasticizers
[EN] BICYCLYL-SUBSTITUTED ISOTHIAZOLINE COMPOUNDS<br/>[FR] COMPOSÉS ISOTHIAZOLINE SUBSTITUÉS PAR UN BICYCLYLE
申请人:BASF SE
公开号:WO2014206910A1
公开(公告)日:2014-12-31
The present invention relates to bicyclyl-substituted isothiazoline compounds of formula (I) wherein the variables are as defined in the claims and description. The compounds are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to a method for controlling invertebrate pests by using these compounds and to plant propagation material and to an agricultural and a veterinary composition comprising said compounds.
The present invention relates to azoline compounds of formula (I) wherein A, B1, B2, B3, G1, G2, X1, R1, R3a, R3b, Rg1 and Rg2 are as defined in the claims and the description. The compounds are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to a method for controlling invertebrate pests by using these compounds and to plant propagation material and to an agricultural and a veterinary composition comprising said compounds.